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Electromagnetic Field Theory

Electromagnetic Field Theory
An infinite sheet has a charge density of 150 μ C/m. The flux density in μ C/m 2 is

 100.
 1/75.
 50.
 75.

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Electromagnetic Field Theory
In above problem, if the inductance L1 and L2 in series aiding with 30 mH mutual inductance, then total inductance will be

 100 mH.
 200 mH.
 50 mH.
 150 mH.

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Electromagnetic Field Theory
In case of antenna the ratio of the power radiated in the desired direction to the power radiated in the opposite direction is known as

Loss coefficient
Front to back ratio
None of these
Transmission efficiency

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Electromagnetic Field Theory
Electric field inside a hollow metallic charged sphere is

 none of above.
 increasing towards centre.
 zero.
 decreasing towards centre.

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Electromagnetic Field Theory
Find H for centre of solenoid having finite length d = 1 unit where N = no of turns = 500, I = 2 A.

 1000.
 None of these.
 100.
 500.

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Electromagnetic Field Theory
1 Maxwell is the same as

 104 weber.
 10-8 weber.
 10-4 weber.
 10-8 weber.

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